GEOLOGY OF WEST COAST REGION OF UNITED STATES 



Coal is an important product of the Tertiary 

 strata. In California the coal is of poor quality 

 and erratic in distribution. Better deposits occur 

 in Coos Bay, Oregon; and in Washington and the 

 adjoining portions of Canada, the great deposits of 

 the Puget Sound region occur. Washington coal, 

 to some extent, has been replaced by California 

 fuel oil, but at some future date the former will 

 assume increased importance when the necessity of 

 conserving the vast California oil deposits becomes 

 more evident. 



Other non-metallic products of Cretaceous and 

 Tertiary age include asphalt, bituminous rock, onyx, 

 and travertine, bauxite, clay, fullers earth, diatomite, 

 and pumice, road metal and construction material. 



MINERAL PRODUCTS OF CALIFORNIA, OREGON, AND 

 WASHINGTON, FOR THE YEAR 1913, FROM "MIN- 

 ERAL RESOURCES OF THE UNITED STATES" (1914), 

 PUBLISHED BY THE U. S. GEOLOGICAL SURVEY. 



Values 



Product California Oregon Washington 



Asphalt $ 1,680,179 $ $ 



Borax 1,491,530 



Cement 8,896,734 .. 2,853,260 



Chromite 2,854 



Clay products 5,344,958 771,79'5 2,390,226 



Coal 84,073 116,724 9,243,137 



Coke 432,770 



Copper 5,359,126 6,716 147,883 



Gems and precious stones.... 26,507 2,975 500 



Gold , 20,406,958 1,627,710 696,275 



Gypsum 230,936 



Lead 154,631 3,837 8,909 



Lime 569,874 30,704 178,945 



Magnesite 77,056 



Mineral paints 3,174 



Mineral waters 531,925 19,409 18,834 



Natural gas 1,883,450 



Petroleum 45,709,400 



Platinum 17,802 675 



Pyrite ., 218,'525 



Quicksilver 627,228 



Salt 745,708 



Sand and gravel .. 439,009 432,938 385,'S86 



Sand-lime brick 38,839 



Silver 832,553 108,139 200,068 



Stone 4,118,935 357,498 1,399,475 



Talc 6,000 



Tungsten ore 226,260 



Zinc 59,219 



Miscellaneous* 1,213,377 181,200 92,345 



Total value eliminating 



duplications $100,791,369 $3,563,919 $17,579,743 



*For California: Other products, briquets, feldspar, ful- 

 lers earth, infusorial earth, iron ore and pig, manganese ore, 

 pumice, quartz, sulphuric acid, and tungsten ore, are included 

 in miscellaneous. 



*For Washington: Briquets, mineral paints, sand-lime 

 brick, are included in miscellaneous. 



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